[dpdk-stable] patch 'net/iavf: fix driver crash when enable TSO' has been queued to LTS release 18.11.3

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 09/04/19. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/6a1aa84302932d33774aa6492eae4002b6e674de

Thanks.

Kevin Traynor

---
>From 6a1aa84302932d33774aa6492eae4002b6e674de Mon Sep 17 00:00:00 2001
From: Ting Xu <ting.xu at intel.com>
Date: Tue, 16 Jul 2019 16:12:25 +0000
Subject: [PATCH] net/iavf: fix driver crash when enable TSO

[ upstream commit e3258d02c21dd9c62797846db568806bf2a57f88 ]

The iavf driver crashes when forwarding packets with TSO
enabled. The reason is that the tx context descriptor
configuration is not transferred to tx-ring. This step is
added in this patch.

Fixes: a2b29a7733ef ("net/avf: enable basic Rx Tx")

Signed-off-by: Ting Xu <ting.xu at intel.com>
Acked-by: Qi Zhang <qi.z.zhang at intel.com>
---
 drivers/net/avf/avf_rxtx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/avf/avf_rxtx.c b/drivers/net/avf/avf_rxtx.c
index 52056c770..1073876e4 100644
--- a/drivers/net/avf/avf_rxtx.c
+++ b/drivers/net/avf/avf_rxtx.c
@@ -1584,4 +1584,7 @@ avf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 			uint64_t cd_type_cmd_tso_mss =
 				AVF_TX_DESC_DTYPE_CONTEXT;
+			volatile struct avf_tx_context_desc *ctx_txd =
+				(volatile struct avf_tx_context_desc *)
+							&txr[tx_id];
 
 			txn = &sw_ring[txe->next_id];
@@ -1597,4 +1600,7 @@ avf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 					avf_set_tso_ctx(tx_pkt, tx_offload);
 
+			ctx_txd->type_cmd_tso_mss =
+				rte_cpu_to_le_64(cd_type_cmd_tso_mss);
+
 			AVF_DUMP_TX_DESC(txq, &txr[tx_id], tx_id);
 			txe->last_id = tx_last;
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-08-28 14:32:32.968615501 +0100
+++ 0021-net-iavf-fix-driver-crash-when-enable-TSO.patch	2019-08-28 14:32:31.629957628 +0100
@@ -1 +1 @@
-From e3258d02c21dd9c62797846db568806bf2a57f88 Mon Sep 17 00:00:00 2001
+From 6a1aa84302932d33774aa6492eae4002b6e674de Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit e3258d02c21dd9c62797846db568806bf2a57f88 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -17 +18 @@
- drivers/net/iavf/iavf_rxtx.c | 6 ++++++
+ drivers/net/avf/avf_rxtx.c | 6 ++++++
@@ -20,5 +21,5 @@
-diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c
-index 2d37c1705..d8eb6d296 100644
---- a/drivers/net/iavf/iavf_rxtx.c
-+++ b/drivers/net/iavf/iavf_rxtx.c
-@@ -1581,4 +1581,7 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
+diff --git a/drivers/net/avf/avf_rxtx.c b/drivers/net/avf/avf_rxtx.c
+index 52056c770..1073876e4 100644
+--- a/drivers/net/avf/avf_rxtx.c
++++ b/drivers/net/avf/avf_rxtx.c
+@@ -1584,4 +1584,7 @@ avf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
@@ -26,3 +27,3 @@
- 				IAVF_TX_DESC_DTYPE_CONTEXT;
-+			volatile struct iavf_tx_context_desc *ctx_txd =
-+				(volatile struct iavf_tx_context_desc *)
+ 				AVF_TX_DESC_DTYPE_CONTEXT;
++			volatile struct avf_tx_context_desc *ctx_txd =
++				(volatile struct avf_tx_context_desc *)
@@ -32,2 +33,2 @@
-@@ -1594,4 +1597,7 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
- 					iavf_set_tso_ctx(tx_pkt, tx_offload);
+@@ -1597,4 +1600,7 @@ avf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
+ 					avf_set_tso_ctx(tx_pkt, tx_offload);
@@ -38 +39 @@
- 			IAVF_DUMP_TX_DESC(txq, &txr[tx_id], tx_id);
+ 			AVF_DUMP_TX_DESC(txq, &txr[tx_id], tx_id);